js/src/tests/test262/language/types/object/S8.6.2_A8.js


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// Copyright 2011 Google Inc.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 8.6.2_A8
description: >
    It should not be possible to change the [[Prototype]]  of a
    non-extensible object
---*/

var x = Object.preventExtensions({});
var y = {};
try {
  x.__proto__ = y;
} catch (err) {
  // As far as this test is concerned, we allow the above assignment
  // to fail. This failure does violate the spec and should probably
  // be tested separately.
}
if (Object.getPrototypeOf(x) !== Object.prototype) {
  throw new Test262Error("Prototype of non-extensible object mutated");
}

reportCompare(0, 0);